ethyl 1-(2-chloroethylcarbamoylamino)cyclopentane-1-carboxylate

ethyl 4-(2-chloroethylcarbamoylamino)cyclohexane-1-carboxylate

1-(2-chloroethyl)-3-(naphthalen-2-yl)urea

1-(2-chloroethyl)-3-(3,3,5-trimethylcyclohexyl)urea

1-(2-chloroethyl)-3-[4-[[4-(2-chloroethylcarbamoylamino)phenyl]methyl]phenyl]urea